Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC

V. A. Acciari; S. Ansoldi; L. A. Antonelli; A. Arbet Engels; C. Arcaro; D. Baack; A. Babić; B. Banerjee; P. Bangale; U. Barres De Almeida; J. A. Barrio; J. Becerra González; W. Bednarek; E. Bernardini; A. Berti; J. Besenrieder; W. Bhattacharyya; C. Bigongiari; A. Biland; O. Blanch; G. Bonnoli; R. Carosi; G. Ceribella; A. Chatterjee; S. M. Colak; P. Colin; E. Colombo; J. L. Contreras; J. Cortina; S. Covino; P. Cumani; V. D'Elia; P. Da Vela; F. Dazzi; A. De Angelis; B. De Lotto; M. Delfino; J. Delgado; F. Di Pierro; A. Domínguez; D. Dominis Prester; D. Dorner; M. Doro; S. Einecke; D. Elsaesser; V. Fallah Ramazani; A. Fattorini; A. Fernández-Barral; G. Ferrara; D. Fidalgo; L. Foffano; M. V. Fonseca; L. Font; C. Fruck; D. Galindo; S. Gallozzi; R. J. García López; M. Garczarczyk; M. Gaug; P. Giammaria; N. Godinović; D. Guberman; D. Hadasch; A. Hahn; T. Hassan; J. Herrera; J. Hoang; D. Hrupec; S. Inoue; K. Ishio; Y. Iwamura; H. Kubo; J. Kushida; D. Kuveždić; A. Lamastra; D. Lelas; F. Leone; E. Lindfors; S. Lombardi; F. Longo; M. López; A. López-Oramas; C. Maggio; P. Majumdar; M. Makariev; G. Maneva; M. Manganaro; K. Mannheim; L. Maraschi; M. Mariotti; M. Martínez; S. Masuda; D. Mazin; M. Minev; J. M. Miranda; R. Mirzoyan; E. Molina; A. Moralejo; V. Moreno; E. Moretti

doi:10.1093/mnras/sty3387

Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC

V. A. Acciari, S. Ansoldi, L. A. Antonelli, A. Arbet Engels, C. Arcaro, D. Baack, A. Babić, B. Banerjee, P. Bangale, U. Barres De Almeida, J. A. Barrio, J. Becerra González, W. Bednarek, E. Bernardini, A. Berti, J. Besenrieder, W. Bhattacharyya, C. Bigongiari, A. Biland, O. BlanchG. Bonnoli, R. Carosi, G. Ceribella, A. Chatterjee, S. M. Colak, P. Colin, E. Colombo, J. L. Contreras, J. Cortina, S. Covino, P. Cumani, V. D'Elia, P. Da Vela, F. Dazzi, A. De Angelis, B. De Lotto, M. Delfino, J. Delgado, F. Di Pierro, A. Domínguez, D. Dominis Prester, D. Dorner, M. Doro, S. Einecke, D. Elsaesser, V. Fallah Ramazani, A. Fattorini, A. Fernández-Barral, G. Ferrara, D. Fidalgo, L. Foffano, M. V. Fonseca, L. Font, C. Fruck, D. Galindo, S. Gallozzi, R. J. García López, M. Garczarczyk, M. Gaug, P. Giammaria, N. Godinović, D. Guberman, D. Hadasch, A. Hahn, T. Hassan, J. Herrera, J. Hoang, D. Hrupec, S. Inoue, K. Ishio, Y. Iwamura, H. Kubo, J. Kushida, D. Kuveždić, A. Lamastra, D. Lelas, F. Leone, E. Lindfors, S. Lombardi, F. Longo, M. López, A. López-Oramas, C. Maggio, P. Majumdar, M. Makariev, G. Maneva, M. Manganaro, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, S. Masuda, D. Mazin, M. Minev, J. M. Miranda, R. Mirzoyan, E. Molina, A. Moralejo, V. Moreno, E. Moretti

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Abstract

© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. SNR G24.7+0.6 is a 9.5 kyrs radio and γ-ray supernova remnant evolving in a dense medium. In the GeV regime, SNR G24.7+0.6 (3FHL J1834.1-0706e/FGES J1834.1-0706) shows a hard spectral index (T ~ 2) up to 200 GeV, which makes it a good candidate to be observed with Cherenkov telescopes such as MAGIC. We observed the field of view of SNR G24.7+0.6 with the MAGIC telescopes for a total of 31 h. We detect very high-energy γ-ray emission from an extended source located 0.34° away from the centre of the radio SNR. The new source, named MAGIC J1835-069 is detected up to 5 TeV, and its spectrum is well-represented by a power-law function with spectral index of 2.74 ± 0.08. The complexity of the region makes the identification of the origin of the very high-energy emission difficult; however, the spectral agreement with the LAT source and overlapping position at less than 1.5σ point to a common origin. We analysed 8 yr of Fermi-LAT data to extend the spectrum of the source down to 60 MeV. Fermi-LAT and MAGIC spectra overlap within errors and the global broad-band spectrum is described by a power law with exponential cut-off at 1.9 ± 0.5 TeV. The detected γ-ray emission can be interpreted as the results of proton-proton interaction between the supernova and the CO-rich surrounding.

Original language	English
Pages (from-to)	4578-4585
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	483
Issue number	4
DOIs	https://doi.org/10.1093/mnras/sty3387
Publication status	Published - 11 Mar 2019

Keywords

acceleration of particles
cosmic rays
gamma-rays: general
ISM: clouds
ISM: supernova remnants

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10.1093/mnras/sty3387

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Acciari, V. A., Ansoldi, S., Antonelli, L. A., Arbet Engels, A., Arcaro, C., Baack, D., Babić, A., Banerjee, B., Bangale, P., De Almeida, U. B., Barrio, J. A., Becerra González, J., Bednarek, W., Bernardini, E., Berti, A., Besenrieder, J., Bhattacharyya, W., Bigongiari, C., Biland, A., ... Moretti, E. (2019). Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC. Monthly Notices of the Royal Astronomical Society, 483(4), 4578-4585. https://doi.org/10.1093/mnras/sty3387

@article{79c3ac4574824e82843e31fe9f0865df,

title = "Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC",

abstract = "{\textcopyright} 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. SNR G24.7+0.6 is a 9.5 kyrs radio and γ-ray supernova remnant evolving in a dense medium. In the GeV regime, SNR G24.7+0.6 (3FHL J1834.1-0706e/FGES J1834.1-0706) shows a hard spectral index (T ~ 2) up to 200 GeV, which makes it a good candidate to be observed with Cherenkov telescopes such as MAGIC. We observed the field of view of SNR G24.7+0.6 with the MAGIC telescopes for a total of 31 h. We detect very high-energy γ-ray emission from an extended source located 0.34° away from the centre of the radio SNR. The new source, named MAGIC J1835-069 is detected up to 5 TeV, and its spectrum is well-represented by a power-law function with spectral index of 2.74 ± 0.08. The complexity of the region makes the identification of the origin of the very high-energy emission difficult; however, the spectral agreement with the LAT source and overlapping position at less than 1.5σ point to a common origin. We analysed 8 yr of Fermi-LAT data to extend the spectrum of the source down to 60 MeV. Fermi-LAT and MAGIC spectra overlap within errors and the global broad-band spectrum is described by a power law with exponential cut-off at 1.9 ± 0.5 TeV. The detected γ-ray emission can be interpreted as the results of proton-proton interaction between the supernova and the CO-rich surrounding.",

keywords = "acceleration of particles, cosmic rays, gamma-rays: general, ISM: clouds, ISM: supernova remnants",

author = "Acciari, {V. A.} and S. Ansoldi and Antonelli, {L. A.} and {Arbet Engels}, A. and C. Arcaro and D. Baack and A. Babi{\'c} and B. Banerjee and P. Bangale and {De Almeida}, {U. Barres} and Barrio, {J. A.} and {Becerra Gonz{\'a}lez}, J. and W. Bednarek and E. Bernardini and A. Berti and J. Besenrieder and W. Bhattacharyya and C. Bigongiari and A. Biland and O. Blanch and G. Bonnoli and R. Carosi and G. Ceribella and A. Chatterjee and Colak, {S. M.} and P. Colin and E. Colombo and Contreras, {J. L.} and J. Cortina and S. Covino and P. Cumani and V. D'Elia and {Da Vela}, P. and F. Dazzi and {De Angelis}, A. and {De Lotto}, B. and M. Delfino and J. Delgado and {Di Pierro}, F. and A. Dom{\'i}nguez and {Dominis Prester}, D. and D. Dorner and M. Doro and S. Einecke and D. Elsaesser and {Fallah Ramazani}, V. and A. Fattorini and A. Fern{\'a}ndez-Barral and G. Ferrara and D. Fidalgo and L. Foffano and Fonseca, {M. V.} and L. Font and C. Fruck and D. Galindo and S. Gallozzi and {Garc{\'i}a L{\'o}pez}, {R. J.} and M. Garczarczyk and M. Gaug and P. Giammaria and N. Godinovi{\'c} and D. Guberman and D. Hadasch and A. Hahn and T. Hassan and J. Herrera and J. Hoang and D. Hrupec and S. Inoue and K. Ishio and Y. Iwamura and H. Kubo and J. Kushida and D. Kuve{\v z}di{\'c} and A. Lamastra and D. Lelas and F. Leone and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and A. L{\'o}pez-Oramas and C. Maggio and P. Majumdar and M. Makariev and G. Maneva and M. Manganaro and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and S. Masuda and D. Mazin and M. Minev and Miranda, {J. M.} and R. Mirzoyan and E. Molina and A. Moralejo and V. Moreno and E. Moretti",

year = "2019",

month = mar,

day = "11",

doi = "10.1093/mnras/sty3387",

language = "English",

volume = "483",

pages = "4578--4585",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

number = "4",

}

Acciari, VA, Ansoldi, S, Antonelli, LA, Arbet Engels, A, Arcaro, C, Baack, D, Babić, A, Banerjee, B, Bangale, P, De Almeida, UB, Barrio, JA, Becerra González, J, Bednarek, W, Bernardini, E, Berti, A, Besenrieder, J, Bhattacharyya, W, Bigongiari, C, Biland, A, Blanch, O, Bonnoli, G, Carosi, R, Ceribella, G, Chatterjee, A, Colak, SM, Colin, P, Colombo, E, Contreras, JL, Cortina, J, Covino, S, Cumani, P, D'Elia, V, Da Vela, P, Dazzi, F, De Angelis, A, De Lotto, B, Delfino, M, Delgado, J, Di Pierro, F, Domínguez, A, Dominis Prester, D, Dorner, D, Doro, M, Einecke, S, Elsaesser, D, Fallah Ramazani, V, Fattorini, A, Fernández-Barral, A, Ferrara, G, Fidalgo, D, Foffano, L, Fonseca, MV, Font, L, Fruck, C, Galindo, D, Gallozzi, S, García López, RJ, Garczarczyk, M, Gaug, M, Giammaria, P, Godinović, N, Guberman, D, Hadasch, D, Hahn, A, Hassan, T, Herrera, J, Hoang, J, Hrupec, D, Inoue, S, Ishio, K, Iwamura, Y, Kubo, H, Kushida, J, Kuveždić, D, Lamastra, A, Lelas, D, Leone, F, Lindfors, E, Lombardi, S, Longo, F, López, M, López-Oramas, A, Maggio, C, Majumdar, P, Makariev, M, Maneva, G, Manganaro, M, Mannheim, K, Maraschi, L, Mariotti, M, Martínez, M, Masuda, S, Mazin, D, Minev, M, Miranda, JM, Mirzoyan, R, Molina, E, Moralejo, A, Moreno, V & Moretti, E 2019, 'Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC', Monthly Notices of the Royal Astronomical Society, vol. 483, no. 4, pp. 4578-4585. https://doi.org/10.1093/mnras/sty3387

TY - JOUR

T1 - Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC

AU - Acciari, V. A.

AU - Ansoldi, S.

AU - Antonelli, L. A.

AU - Arbet Engels, A.

AU - Arcaro, C.

AU - Baack, D.

AU - Babić, A.

AU - Banerjee, B.

AU - Bangale, P.

AU - De Almeida, U. Barres

AU - Barrio, J. A.

AU - Becerra González, J.

AU - Bednarek, W.

AU - Bernardini, E.

AU - Berti, A.

AU - Besenrieder, J.

AU - Bhattacharyya, W.

AU - Bigongiari, C.

AU - Biland, A.

AU - Blanch, O.

AU - Bonnoli, G.

AU - Carosi, R.

AU - Ceribella, G.

AU - Chatterjee, A.

AU - Colak, S. M.

AU - Colin, P.

AU - Colombo, E.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Covino, S.

AU - Cumani, P.

AU - D'Elia, V.

AU - Da Vela, P.

AU - Dazzi, F.

AU - De Angelis, A.

AU - De Lotto, B.

AU - Delfino, M.

AU - Delgado, J.

AU - Di Pierro, F.

AU - Domínguez, A.

AU - Dominis Prester, D.

AU - Dorner, D.

AU - Doro, M.

AU - Einecke, S.

AU - Elsaesser, D.

AU - Fallah Ramazani, V.

AU - Fattorini, A.

AU - Fernández-Barral, A.

AU - Ferrara, G.

AU - Fidalgo, D.

AU - Foffano, L.

AU - Fonseca, M. V.

AU - Font, L.

AU - Fruck, C.

AU - Galindo, D.

AU - Gallozzi, S.

AU - García López, R. J.

AU - Garczarczyk, M.

AU - Gaug, M.

AU - Giammaria, P.

AU - Godinović, N.

AU - Guberman, D.

AU - Hadasch, D.

AU - Hahn, A.

AU - Hassan, T.

AU - Herrera, J.

AU - Hoang, J.

AU - Hrupec, D.

AU - Inoue, S.

AU - Ishio, K.

AU - Iwamura, Y.

AU - Kubo, H.

AU - Kushida, J.

AU - Kuveždić, D.

AU - Lamastra, A.

AU - Lelas, D.

AU - Leone, F.

AU - Lindfors, E.

AU - Lombardi, S.

AU - Longo, F.

AU - López, M.

AU - López-Oramas, A.

AU - Maggio, C.

AU - Majumdar, P.

AU - Makariev, M.

AU - Maneva, G.

AU - Manganaro, M.

AU - Mannheim, K.

AU - Maraschi, L.

AU - Mariotti, M.

AU - Martínez, M.

AU - Masuda, S.

AU - Mazin, D.

AU - Minev, M.

AU - Miranda, J. M.

AU - Mirzoyan, R.

AU - Molina, E.

AU - Moralejo, A.

AU - Moreno, V.

AU - Moretti, E.

PY - 2019/3/11

Y1 - 2019/3/11

N2 - © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. SNR G24.7+0.6 is a 9.5 kyrs radio and γ-ray supernova remnant evolving in a dense medium. In the GeV regime, SNR G24.7+0.6 (3FHL J1834.1-0706e/FGES J1834.1-0706) shows a hard spectral index (T ~ 2) up to 200 GeV, which makes it a good candidate to be observed with Cherenkov telescopes such as MAGIC. We observed the field of view of SNR G24.7+0.6 with the MAGIC telescopes for a total of 31 h. We detect very high-energy γ-ray emission from an extended source located 0.34° away from the centre of the radio SNR. The new source, named MAGIC J1835-069 is detected up to 5 TeV, and its spectrum is well-represented by a power-law function with spectral index of 2.74 ± 0.08. The complexity of the region makes the identification of the origin of the very high-energy emission difficult; however, the spectral agreement with the LAT source and overlapping position at less than 1.5σ point to a common origin. We analysed 8 yr of Fermi-LAT data to extend the spectrum of the source down to 60 MeV. Fermi-LAT and MAGIC spectra overlap within errors and the global broad-band spectrum is described by a power law with exponential cut-off at 1.9 ± 0.5 TeV. The detected γ-ray emission can be interpreted as the results of proton-proton interaction between the supernova and the CO-rich surrounding.

AB - © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. SNR G24.7+0.6 is a 9.5 kyrs radio and γ-ray supernova remnant evolving in a dense medium. In the GeV regime, SNR G24.7+0.6 (3FHL J1834.1-0706e/FGES J1834.1-0706) shows a hard spectral index (T ~ 2) up to 200 GeV, which makes it a good candidate to be observed with Cherenkov telescopes such as MAGIC. We observed the field of view of SNR G24.7+0.6 with the MAGIC telescopes for a total of 31 h. We detect very high-energy γ-ray emission from an extended source located 0.34° away from the centre of the radio SNR. The new source, named MAGIC J1835-069 is detected up to 5 TeV, and its spectrum is well-represented by a power-law function with spectral index of 2.74 ± 0.08. The complexity of the region makes the identification of the origin of the very high-energy emission difficult; however, the spectral agreement with the LAT source and overlapping position at less than 1.5σ point to a common origin. We analysed 8 yr of Fermi-LAT data to extend the spectrum of the source down to 60 MeV. Fermi-LAT and MAGIC spectra overlap within errors and the global broad-band spectrum is described by a power law with exponential cut-off at 1.9 ± 0.5 TeV. The detected γ-ray emission can be interpreted as the results of proton-proton interaction between the supernova and the CO-rich surrounding.

KW - acceleration of particles

KW - cosmic rays

KW - gamma-rays: general

KW - ISM: clouds

KW - ISM: supernova remnants

UR - http://www.mendeley.com/research/discovery-tev-%CE%B3ray-emission-neighbourhood-supernova-remnant-g24706-magic

U2 - 10.1093/mnras/sty3387

DO - 10.1093/mnras/sty3387

M3 - Article

SN - 0035-8711

VL - 483

SP - 4578

EP - 4585

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC

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